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01 Apr 2015 7:48:42am

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Okay - you're wrong.

First such a large coronal mass ejection is not likely.

Second it doesn't cause an EMP like, for e.g. a nuclear blast. The shock wave of the traveling mass of Solar Energetic Particles causes a geomagnetic storm that may disrupt the Earth's magnetosphere, compressing it on the day side and extending the night-side magnetic tail. When the magnetosphere reconnects on the nightside, it releases power on the order of terawatt scale, which is directed back toward the Earth's upper atmosphere.

Coronal mass ejections, along with solar flares of other origin, can disrupt radio transmissions and cause damage to satellites and electrical transmission line facilities, resulting in potentially massive and long-lasting power outages.

BUT this would not stop, for example, diesel engines driving secondary and backup coolant systems associated with a reactor - which in this instance were taken out by the tsunami. As well electronic equipment can be shielded from this sort of event.

If you going to raise this sort alarmist thibnking why not worry about an asteroid hitting us? That could happen too.